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| Titel |
Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects |
| VerfasserIn |
M. Gousheva, D. Danov, P. Hristov, M. Matova |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 8, no. 1 ; Nr. 8, no. 1 (2008-02-21), S.101-107 |
| Datensatznummer |
250005324
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| Publikation (Nr.) |
 copernicus.org/nhess-8-101-2008.pdf |
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| Zusammenfassung |
| To prove a direct relationship between the quasi-static electric field
disturbances and seismic activity is a difficult, but actual task of the
modern ionosphere physics. This paper presents new results on the processing
and analysis of the quasi-static electric field in the upper ionosphere (h=800–900 km) observed from the satellite INTERCOSMOS-BULGARIA-1300 over
earthquakes' source regions (seismic data of World Data Center, Denver,
Colorado, USA). Present research focuses on three main areas (i)
development of methodology of satellite and seismic data selecting, (ii)
data processing and observations of the quasi-static electric field (iii)
study and accumulation of statistics of possible connection between
anomalous vertical electric fields penetrating from the earthquake zone into
the ionosphere, and seismic activity. The most appropriate data (for
satellite orbits above sources of forthcoming or just happened seismic
events) have been selected from more than 250 investigated cases.The
increase of about 5-10-15 mV/m in the vertical component of the quasi-static
electric field observed by INTERCOSMOS-BULGARIA-1300 during seismic activity
over Southern Ocean, Greenland Sea, South-Weat Pacific Ocean, Indian Ocean,
Central America, South-East Pacific Ocean, Malay Archipelago regions are
presented. These anomalies, as phenomena accompanying the seismogenic
process, can be considered eventually as possible pre-, co- (coeval to) and
post-earthquake effects in the ionosphere. |
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